NDLI: Control of flowering time and spike development in cereals: the earliness per se Eps-1 region in wheat, rice, and Brachypodium

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Control of flowering time and spike development in cereals: the earliness per se Eps-1 region in wheat, rice, and Brachypodium

Functional & Integrative Genomics : Volume 10, Issue 1, March 2010

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Control of flowering time and spike development in cereals: the earliness per se Eps-1 region in wheat, rice, and Brachypodium

Content Provider	Springer Nature Link
Author	Faricelli, Maria E. Valárik, Miroslav Dubcovsky, Jorge
Copyright Year	2009
Abstract	The earliness per se gene Eps-A m 1 from diploid wheat Triticum monococcum affects heading time, spike development, and spikelet number. In this study, the Eps1 orthologous regions from rice, Aegilops tauschii, and Brachypodium distachyon were compared as part of current efforts to clone this gene. A single Brachypodium BAC clone spanned the Eps-A m 1 region, but a gap was detected in the A. tauschii physical map. Sequencing of the Brachypodium and A. tauschii BAC clones revealed three genes shared by the three species, which showed higher identity between wheat and Brachypodium than between them and rice. However, most of the structural changes were detected in the wheat lineage. These included an inversion encompassing the wg241-VatpC region and the presence of six unique genes. In contrast, only one unique gene (and one pseudogene) was found in Brachypodium and none in rice. Three genes were present in both Brachypodium and wheat but were absent in rice. Two of these genes, Mot1 and FtsH4, were completely linked to the earliness per se phenotype in the T. monococcum high-density genetic map and are candidates for Eps-A m 1. Both genes were expressed in apices and developing spikes, as expected for Eps-A m 1 candidates. The predicted MOT1 protein showed amino acid differences between the parental T. monococcum lines, but its effect is difficult to predict. Future steps to clone the Eps-A m 1 gene include the generation of mot1 and ftsh4 mutants and the completion of the T. monococcum physical map to test for the presence of additional candidate genes.
Starting Page	293
Ending Page	306
Page Count	14
File Format	PDF
ISSN	1438793X
Journal	Functional & Integrative Genomics
Volume Number	10
Issue Number	2
e-ISSN	14387948
Language	English
Publisher	Springer Berlin Heidelberg
Publisher Date	2009-10-23
Publisher Place	Berlin, Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Comparative genomics Earliness per se Flowering Wheat Brachypodium Cell Biology Plant Genetics & Genomics Microbial Genetics and Genomics Biochemistry Bioinformatics Animal Genetics and Genomics
Content Type	Text
Resource Type	Article
Subject	Genetics Medicine

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Control of flowering time and spike development in cereals: the earliness per se Eps-1 region in wheat, rice, and Brachypodium

Erratum to: Control of flowering time and spike development in cereals: the earliness per se Eps-1 region in wheat, rice, and Brachypodium

Erratum to: Control of flowering time and spike development in cereals: the earliness per se Eps-1 region in wheat, rice, and Brachypodium

Control of flowering time and spike development in cereals: the earliness per se Eps-1 region in wheat, rice, and Brachypodium

Genetic and physical mapping of the earliness per se locus Eps-A m 1 in Triticum monococcum identifies EARLY FLOWERING 3 (ELF3) as a candidate gene

A microcolinearity study at the earliness per se gene Eps-A m 1 region reveals an ancient duplication that preceded the wheat–rice divergence

Micro-colinearity between rice, Brachypodium, and Triticum monococcum at the wheat domestication locus Q

Validation of a 1DL earliness per se (eps) flowering QTL in bread wheat (Triticum aestivum)

The compact Brachypodium genome conserves centromeric regions of a common ancestor with wheat and rice

Control of flowering time and spike development in cereals: the earliness per se Eps-1 region in wheat, rice, and Brachypodium

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Control of flowering time and spike development in cereals: the earliness per se Eps-1 region in wheat, rice, and Brachypodium

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Control of flowering time and spike development in cereals: the earliness per se Eps-1 region in wheat, rice, and Brachypodium

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Control of flowering time and spike development in cereals: the earliness per se Eps-1 region in wheat, rice, and Brachypodium